【Mysql】Mysql主從庫搭建過程（爬完坑後整理所得）

Mysql主從資料庫搭建流程

新手開始學習mysql主從庫，遇到一些問題，總結後寫出以下流程

下麵以5.7.23版本為例介紹

第一步：去官網下載5.7.23版本的免安裝壓縮包形式的mysql文件，貼上網址吧：https://dev.mysql.com/downloads/mysql/5.7.html#downloads
第二步：將下載好解壓後的mysql文件放到D盤任何一非中文目錄下（不是必須，避免出問題），併在mysql文件後面標註序號1和序號2

             
第三步：在mysql文件的根目錄下新建一個my.ini文件，將文件拷貝進去

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 

# 以下內容手動添加
[client]
port=3307
default-character-set=utf8
[mysqld]
#主庫配置
#skip_grant_tables
server_id=1
log_bin=master-bin
log_bin-index=master-bin.index


#埠
port=3306
character_set_server=utf8
#解壓目錄
basedir = D:\Software\Mysql\mysql-5.7.23-winx64-1
#解壓目錄下data目錄
datadir = D:\Software\Mysql\mysql-5.7.23-winx64-1\data

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[WinMySQLAdmin]
 D:\Software\Mysql\mysql-5.7.23-winx64-1\bin\mysqld.exe

第四步：管理員方式打開CMD，進入mysql的bin目錄下，執行以下語句，紅色的路徑記得改成自己的噢
　　　　mysqld --install slave --defaults-file="D:\software\Mysql\mysql-5.7.23-winx64-2\my.ini"
第五步：執行mysqld --initialize-insecure --user=root ,這句命令是為了初始化資料庫data
第六步：執行命令 net start mysql啟動服務

到此，mysql資料庫配置成功

接下來，開始修改mysql的許可權和修改root的密碼（前提是服務必須要打開噢）
第一步：輸入命令myslq -h localhost -P 3306 -u root 進入mysql資料庫（當時為瞭解決這個問題浪費了很多時間，還是因為對mysql不熟的原因）
後面依次輸入以下命令即可

mysql>use mysql;

mysql>update user set host='%' where user='root';

mysql>flush privileges;

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

mysql>ALTER USER 'root'@'%' IDENTIFIED BY '123456';

mysql>exit;

到這裡，你的mysql主庫已經配置成功了，可以下載一個SQLyog等工具訪問你的資料庫吧

從庫的安裝流程參考主庫安裝流程，只是my.ini文件稍有不同，下麵是從庫的my.ini文件

從庫安裝完成後，至此主從庫已經安裝完成了

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 

# 以下內容手動添加
[client]
port=3307
default-character-set=utf8
[mysqld]
#從庫配置
server_id=2
relay-log-index=slave-relay-bin.index
relay-log=slave-relay-bin
#埠
port=3307
character_set_server=utf8
#解壓目錄
basedir=G:\Mysql\mysql-5.6.38-winx64
#解壓目錄下data目錄
datadir=G:\Mysql\mysql-5.6.38-winx64\data

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[WinMySQLAdmin]
G:\Mysql\mysql-5.6.38-winx64\bin\mysqld.exe

my.ini

剩下的配置就不再贅述了，請參考https://www.cnblogs.com/naruto123/p/8138708.html

感謝大神們無私分享經驗，

以上分享只是我在使用5.7.23版本搭建主從庫時參考了5.6的主從庫教程，搭建時出現了問題所以才總結出一篇

參考大神的經驗時一定要有自己的思考和總結